%0 Journal Article
%T Mucus as an Arrested Phase Separation Gel
%+ Laboratoire Charles Coulomb (L2C)
%+ Institute for Polymers, Composites and Biomaterials, CNR
%A Philippe, Adrian Marie
%A Cipelletti, Luca
%A Larobina, Domenico
%< avec comité de lecture
%Z L2C:17-298
%@ 0024-9297
%J Macromolecules
%I American Chemical Society
%V 50
%N 20
%P 8221-8230
%8 2017-10-24
%D 2017
%R 10.1021/acs.macromol.7b00842
%Z Physics [physics]/Condensed Matter [cond-mat]/Soft Condensed Matter [cond-mat.soft]Journal articles
%X We investigate the spontaneous restructuring andaging behavior of pig gastric mucus gels by combining rheology andnonconventional static and dynamic light scattering. We find that themucus elasticity weakens over time, concomitantly to structuralevolution toward a locally more compact configuration and the onsetof large scale density fluctuations. We interpret this behavior asstemming from an arrested phase separation, as observed in manygel-forming polymer systems. This scenario is confirmed by spaceandtime-resolved dynamic light scattering data, showing that the gelrestructuring is due to intermittent bursts of spatially correlatedrearrangements, leading to ballistic dynamics.
%G English
%L hal-01934572
%U https://hal.science/hal-01934572
%~ CNRS
%~ L2C
%~ MIPS
%~ UNIV-MONTPELLIER
%~ UM-2015-2021